This week we learned about probability. Probability is the likelihood of something happening through the situation and information at hand. Probability deals with outcomes, sample space and an event. The outcome is the result of the experiment, the sample space is the possible outcomes, and the even is the subcollection of the possible outcomes. The probability of an event is described as the event over the sample space. An independent event occurs when order does not matter and a occurrence has no effect on the second occurrence. For instance when a marble is taken, but then put back, the event is not changed. Probability questions are usually word problems, and they just take a deeper understanding of the problem. Then, you can use your common sense, or the equations to find your answer.
Probability of a Complement: P(A) = 1 - P(A)
Probability of Independent Events: P(A and B) = P(A) x P(B)
Probability of an Event: P)EP = n(E)/n(S)
No comments:
Post a Comment